Use substitution when either and x or y is given, for instance: x = 2y + 3 or y = 8x - 9.
Use elimination when a number from both equations can cancel each other out, for example:
2x + 3y = 19
-2x + 7y = 12
Hope this helps!
X Y
————-
-2. -4
-1. -8
0. -12
1. -16
2. -20
Answer:
4C
Step-by-step explanation:
41= x+32
x= 41-32
x = 4C
First, a scale factor is the ratio of the corresponding sides in two similar geometric figures.
To find the scale factor:
1. Locate two corresponding sides (one on each figure).
2. Write the ratio of one length to the other.
And there you go! That's the scale figure from one figure to the other
Hope that helps and correct me if I'm wrong!
30, it’ll take 30 men to dig 8 hactares in 12 days.
